I think you're fine lol, just a possible minor nitrogen deficiency if that.
The mildew or mites are just something to keep an eye out for in, make sure your RH is below 70% and there's some air movement and you won't have a mildew prone environment. Leaves should be rustling and what not.
I'm happy to help man, I made my fair share of mistakes with my first 2 grows although I still ended up with a bumper first crop and a tasty second crop. For my own shameless self promotion I'm going to share a pic or two of my current 3rd crop, I'm ecstatic with how it's growing. Day 23 from 12/12 flip
Good luck and don't stop learning man! It's such a fun process